A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Nuts of iron or steel
NSN 5855-00-586-6255
NSN 5920-01-275-2260
NSN 5925-01-641-6392
NSN 6645-00-498-6869
NSN 5990-00-127-6749
NSN 6610-01-513-3526
NSN 5999-01-057-5223
NSN 6105-01-458-0763
NSN 6220-00-649-3241
NSN 5990-00-277-3763
NSN 6620-00-148-9613
NSN 6130-00-155-5873